Lag when waking from standby?General

My nephew noticed a bit of lag when waking my DNA from sleep. I hadn't noticed it before but now I do. The screen basically wakes in three stages: First the background and notification bar icons light up, then the main screen icons and clock light up, finally the notification bar gets a shade lighter. Again, I didn't consider this lag until my nephew pointed it out. I'm wondering if this is normal or if the whole screen and icons etc all light up simultaneously. Anyone?

So nobody else is noticing the way the phone wakes from sleep in a layered way? It's very very subtle/fast, but the home screen doesn't appear all at once, it's a quick 1,2,3 succession. Or is this just my phone?